Teki-SL Program3 MonthsBeginner to Advanced

R Programming

Learn R from zero: data structures, visualisation, and statistical analysis for research, NGO, and data careers.

Ibrahim George FodayMohamed Dyphan MassaquoiMentor-led by Ibrahim Foday and Mohamed Dyphan
Modules
3 modules
Length
3 Months
Level
Beginner to Advanced

About this course

A 3 Months built around practical learning, guided structure, and proof of progress.

Learn R from zero: data structures, visualisation, and statistical analysis for research, NGO, and data careers. Portfolio-driven, built for the Sierra Leonean job market, and tuition-free for every learner we accept. Complete every lesson and pass the final check to earn a verifiable certificate.
Outcomes

What you will be able to do

Set up R and RStudio and navigate the data science workflow
Import, clean, and reshape real datasets using tidyverse tools
Create publication-quality charts and maps with ggplot2
Apply descriptive and inferential statistics to answer real questions
Write reproducible R scripts and reports for research and donor work

Curriculum

3 modules

Review the modules before enrolling. Preview lessons are marked in the curriculum where the instructor has opened them.

3 modules · 10 lessons · 4h of material · 1 knowledge check

  1. 1Section 1: Getting started with R3 lessons · 1h 15m · 1 free to preview
    • Why R and how to set it upFree preview
      25 min
    • R objects, vectors, and data types
      25 min
    • Data frames: the workhorse of R analysis
      25 min
  2. 2Section 2: Data cleaning and transformation3 lessons · 1h 15m
    • The tidyverse: cleaner, faster R
      25 min
    • Cleaning messy real-world data
      25 min
    • Reshaping and joining data
      25 min
  3. 3Section 3: Data visualisation with ggplot24 lessons · 1h 30m · 1 check
    • ggplot2: a grammar of graphics
      25 min
    • Charts that communicate clearly
      25 min
    • Maps and spatial data in R
      25 min
    • R Programming final check
      15 min

Requirements

  • A phone or laptop with internet access
  • A few committed hours each week

Meet your mentor-instructors

Ibrahim George Foday

Ibrahim George Foday

Founder of Teki-SL and multidisciplinary trainer across software, data, GIS, research, MEAL, and digital systems.

FounderLead course designerProfessional foundations guide
Mohamed Dyphan Massaquoi

Mohamed Dyphan Massaquoi

Co-founder and learner-support lead focused on community accountability, mentorship, and practical course guidance.

Co-founderCommunity managerProfessional foundations guide

Frequently asked questions

How long is R Programming?

R Programming runs over 3 Months and covers 3 modules. Lessons open as soon as you are accepted, so you work through them at your own pace inside that window.

What will I be able to do after R Programming?

By the end you will be able to: Set up R and RStudio and navigate the data science workflow; Import, clean, and reshape real datasets using tidyverse tools; Create publication-quality charts and maps with ggplot2; Apply descriptive and inferential statistics to answer real questions; and Write reproducible R scripts and reports for research and donor work. Every module is built around work you can show, not recall alone.

Do I need any experience to start?

No. R Programming runs from beginner to advanced: it starts at the basics and builds to advanced work, so you can join with no background in the subject and still finish with something to show.

Will I earn a certificate?

Yes. Complete every required lesson and you earn a verifiable Teki-SL certificate of completion, with a link anyone can check.

How much does it cost, and what is the scholarship?

Teki-SL runs these programmes on scholarship. Applying costs nothing, and a learner we accept pays no tuition and signs no income-share agreement. Places are limited, so not every applicant is awarded one; if you are not selected you can apply again for the next intake, and the free guides, cheatsheets and practice tools stay open to you either way.

Ready to start?

Enrol today, learn at your own pace, and earn a verifiable Teki-SL certificate.

R Programming
3 MonthsBy application